What are the key performance indicators of membrane materials

Physical Properties

• Thickness and Uniformity: Affect breathability, barrier properties, and mechanical strength.
• Pore Size and Porosity: Determine filtration accuracy or breathability (e.g., medical warming blankets require uniform pore distribution).
• Mechanical Strength: Includes tensile strength, tear strength, and abrasion resistance (e.g., industrial films must withstand high pressure or friction).

Chemical Properties

• Chemical Resistance: Ability to resist corrosion from acids, alkalis, organic solvents, etc. (e.g., chemical filtration membranes require resistance to strong acids and alkalis).
• Stability: Heat resistance, aging resistance, and UV resistance (e.g., outdoor films need long-term stability).

Biological and Safety Properties

• Biocompatibility: Non-toxic, non-allergenic, and non-cytotoxic (e.g., medical membranes must pass cytotoxicity testing).
• Antimicrobial Properties: Inhibit microbial growth (e.g., medical or food packaging films require antimicrobial capabilities).

Other Properties

• Breathability and Barrier Properties: Balance gas exchange with substance barrier (e.g., medical warming blankets need breathability while retaining heat).
• Conductivity: Used in electronic applications (e.g., battery separators require ion conduction).